8986840

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1129}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 20340000

約数和(自身を除く): 11353160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1129, 1592, 1990, 2258, 3980, 4516, 5645, 7960, 9032, 11290, 22580, 45160, 224671, 449342, 898684, 1123355, 1797368, 2246710, 4493420, 8986840]

約数ペア:

[(1, 8986840), (2, 4493420), (4, 2246710), (5, 1797368), (8, 1123355), (10, 898684), (20, 449342), (40, 224671), (199, 45160), (398, 22580), (796, 11290), (995, 9032), (1129, 7960), (1592, 5645), (1990, 4516), (2258, 3980)]